Apparatus, system, and method for actuating a charging handle

ABSTRACT

An apparatus, system, and method are disclosed for actuating a charging handle of a firearm having a charging handle latch. A forward handle is configured to be positioned forward of the charging handle latch. A linkage rod is configured to be coupled to the forward handle and to engage the charging handle latch. One or more linkage rod supports are configured to attach the linkage rod to the firearm.

CROSS-REFERENCES TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional PatentApplication No. 61/699,357, filed on Sep. 11, 2012, which isincorporated herein by reference.

FIELD

The present disclosure, in various embodiments, relates generally tofirearms, and more particularly to actuating a charging handle for afirearm.

BACKGROUND

Many firearms move a bolt into a forward position to seal a cartridgeinto a chamber at the rear of a barrel while the cartridge is fired.Most automatic and semi-automatic firearms utilize energy from thefiring of a cartridge to move the bolt back automatically, which ejectsthe spent shell casing and loads the next cartridge. In normaloperation, the bolt is locked into a disengaged position after the lastcartridge in a magazine is fired. After the magazine is replaced with anew loaded magazine, engagement of a bolt release allows the bolt tomove forward and load the next cartridge. Many firearms include acharging handle that is actuateable to move the bolt back manually.Moving the bolt back manually is useful to clear a jam, visually verifythat the chamber is clear, or load a first cartridge (if the bolt is notalready disengaged). When not in use, the charging handle on somefirearms is latched in the forward position, and does not move duringfiring. Other firearms have a charging handle that reciprocates with thebolt during firing and loading.

In some configurations, particularly in rifles similar to or derivedfrom the AR-15, the charging handle is a T-shaped handle at the top backof the upper receiver of the firearm, with a latch on the left side.These configurations were originally designed so that a right-handedshooter would actuate the charging handle by reaching over the riflewith the trigger hand (i.e., right hand) and using two fingers (e.g.,index and middle fingers), one on each side of the handle, to pull thehandle back. In doing so, the finger on the latch side of the handlealso pulls back on the latch to unlatch the handle. The operation ofunlatching the handle and pulling back the handle cannot be done withthe trigger hand without moving the firearm significantly off target.Modern tactics favor moving the firearm as little as possible andmaintaining the firing grip with the trigger hand to facilitate quickerfiring readiness. Accordingly, a shooter may use the support hand (i.e.,left hand) to engage the latch and pull back the charging handle whilethe trigger hand remains in the firing grip. Improved and extended“tactical” latches have been made to accommodate such modern tacticaloperations of firearms with a latched charging handle.

SUMMARY

The subject matter of the present application has been developed inresponse to the present state of the art, and in particular, in responseto the problems and needs of shooters that have not yet been fullysolved by currently available charging handles, charging handle latches,and firearms. Accordingly, the subject matter of the present applicationhas been developed to provide an apparatus, system, and method foractuating a charging handle that overcomes many of the shortcomings ofthe prior art.

An apparatus is presented for actuating a charging handle of a firearmhaving a charging handle latch. In one embodiment, a forward handle isconfigured to be positioned forward of the charging handle latch. In afurther embodiment, a linkage rod is configured to be coupled to theforward handle. In a certain embodiment, the linkage rod is configuredto engage the charging handle latch. In some embodiments, one or morelinkage rod supports are configured to attach the linkage rod to thefirearm.

In one embodiment, the linkage rod supports are configured to attach toan accessory rail of the firearm at one or more attachment pointsselectable by a user from a plurality of available attachment points. Ina certain embodiment, the one or more linkage rod supports include twoindependent linkage rod supports. In some embodiments, a distancebetween the two independent linkage rod supports is selectable by theuser by selecting attachment points for attaching the independentlinkage rod supports to the accessory rail. In another embodiment, theone or more linkage rod supports include a single linkage rod supportconfigured to attach to the accessory rail at two attachment points afixed distance apart.

In one embodiment, a hinge is configured to couple the forward handle tothe linkage rod so that the forward handle is movable between an axialposition and a lateral position. In a further embodiment, a spring isconfigured to bias the forward handle into the axial position.

In one embodiment, a slot in a rear portion of the linkage rod isconfigured to engage a forward portion of the charging handle latch. Inanother embodiment, the apparatus includes the charging handle latch. Ina further embodiment, the charging handle latch includes a forwardportion and a lateral portion. In some embodiments, the forward portionof the charging handle latch is configured to engage the linkage rod. Incertain embodiments, the lateral portion of the charging handle latch isconfigured to extend beyond the linkage rod in a lateral direction fromthe firearm. In further embodiments, the lateral portion of the charginghandle latch may include a ridged surface.

In one embodiment, the apparatus includes the charging handle. Inanother embodiment, the apparatus includes the firearm.

A system is presented for actuating a charging handle of a firearm. Inone embodiment, the system includes a firearm. In a further embodiment,a charging handle is coupled to a receiver of the firearm. In a certainembodiment, a charging handle latch is coupled to the charging handle.In one embodiment, a forward handle is positioned forward of thecharging handle latch. In a further embodiment, a linkage rod is coupledto the forward handle. In certain embodiments, the linkage rod engagesthe charging handle latch. In some embodiments, one or more linkage rodsupports attach the linkage rod to the firearm.

In one embodiment, the linkage rod supports are attached to an accessoryrail of the firearm at one or more attachment points selectable by auser from a plurality of available attachment points. In a certainembodiment, a hinge couples the forward handle to the linkage rod sothat the forward handle is movable between an axial position and alateral position. In a further embodiment, a spring is configured tobias the forward handle into the axial position.

In one embodiment, a slot in a rear portion of the linkage rod engages aforward portion of the charging handle latch. In another embodiment, thecharging handle latch comprises a forward portion engaging the linkagerod and a lateral portion extending beyond the linkage rod in a lateraldirection from the firearm. In a further embodiment, the lateral portionof the charging handle latch includes a ridged surface.

A method is presented for actuating a charging handle of a firearmhaving a charging handle latch. In one embodiment, the method includesengaging a forward handle. In a certain embodiment, the forward handleis positioned forward of the charging handle latch and communicates withthe charging handle. In a further embodiment, the method includesactuating the charging handle by actuating the forward handle.

In one embodiment, actuating the forward handle includes moving theforward handle backward. In another embodiment, the forward handlecommunicates with the charging handle via a linkage rod coupled to theforward handle and engaging the charging handle latch.

The described features, structures, advantages, and/or characteristicsof the subject matter of the present disclosure may be combined in anysuitable manner in one or more embodiments and/or implementations. Inthe following description, numerous specific details are provided toimpart a thorough understanding of embodiments of the subject matter ofthe present disclosure. One skilled in the relevant art will recognizethat the subject matter of the present disclosure may be practicedwithout one or more of the specific features, details, components,materials, and/or methods of a particular embodiment or implementation.In other instances, additional features and advantages may be recognizedin certain embodiments and/or implementations that may not be present inall embodiments or implementations. Further, in some instances,well-known structures, materials, or operations are not shown ordescribed in detail to avoid obscuring aspects of the subject matter ofthe present disclosure. The features and advantages of the subjectmatter of the present disclosure will become more fully apparent fromthe following description and appended claims, or may be learned by thepractice of the subject matter as set forth hereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

In order that the advantages of the disclosure will be readilyunderstood, a more particular description of the disclosure brieflydescribed above will be rendered by reference to specific embodimentsthat are illustrated in the appended drawings. Understanding that thesedrawings depict only typical embodiments of the disclosure and are nottherefore to be considered to be limiting of its scope, the disclosurewill be described and explained with additional specificity and detailthrough the use of the accompanying drawings, in which:

FIG. 1 is a perspective view illustrating one embodiment of a firearmhaving a charging handle;

FIG. 2 is a perspective view further illustrating the firearm of FIG. 1;

FIG. 3 is a perspective view illustrating one embodiment of an apparatusfor actuating a charging handle;

FIG. 4 is a top view further illustrating the apparatus of FIG. 3;

FIG. 5 is a top view further illustrating the apparatus of FIG. 3;

FIG. 6 is a perspective view illustrating another embodiment of anapparatus for actuating a charging handle;

FIG. 7 is a perspective view further illustrating the apparatus of FIG.6; and

FIG. 8 is a schematic flow chart diagram illustrating one embodiment ofa method for actuating a charging handle.

DETAILED DESCRIPTION

Reference throughout this specification to “one embodiment,” “anembodiment,” or similar language means that a particular feature,structure, or characteristic described in connection with the embodimentis included in at least one embodiment. Thus, appearances of the phrases“in one embodiment,” “in an embodiment,” and similar language throughoutthis specification may, but do not necessarily, all refer to the sameembodiment, but mean “one or more but not all embodiments” unlessexpressly specified otherwise. The terms “including,” “comprising,”“having,” and variations thereof mean “including but not limited to”unless expressly specified otherwise. An enumerated listing of itemsdoes not imply that any or all of the items are mutually exclusiveand/or mutually inclusive, unless expressly specified otherwise. Theterms “a,” “an,” and “the” also refer to “one or more” unless expresslyspecified otherwise.

Furthermore, the described features, structures, or characteristics ofthe subject matter of the present disclosure may be combined in anysuitable manner in one or more embodiments. In the followingdescription, numerous specific details are provided to provide athorough understanding of embodiments of the subject matter of thepresent disclosure. One skilled in the relevant art will recognize,however, that the subject matter of the present disclosure may bepracticed without one or more of the specific details, or with othermethods, components, materials, and so forth. In other instances,well-known structures, materials, or operations are not shown ordescribed in detail to avoid obscuring aspects of the subject matter ofthe present disclosure.

The schematic flow chart diagram included herein is generally set forthas a logical flow chart diagram. As such, the depicted order and labeledsteps are indicative of one embodiment of the presented method. Othersteps and methods may be conceived that are equivalent in function,logic, or effect to one or more steps, or portions thereof, of theillustrated method. Additionally, the format and symbols employed areprovided to explain the logical steps of the method and are understoodnot to limit the scope of the method. Although various arrow types andline types may be employed in the flow chart diagrams, they areunderstood not to limit the scope of the corresponding method. Indeed,some arrows or other connectors may be used to indicate only the logicalflow of the method. For instance, an arrow may indicate a waiting ormonitoring period of unspecified duration between enumerated steps ofthe depicted method. Additionally, the order in which a particularmethod occurs may or may not strictly adhere to the order of thecorresponding steps shown.

Applicants recognize that conventional left-hand actuation of thecharging handle involves a large motion of the hand, (e.g., moving theleft hand from a support position at a front portion of the firearm to acharging position at a rear portion of the firearm). Additionally,whether the right or left hand is used, the charging handle's positionnear the back of the firearm causes the shooter to avoid hitting thechin with the hand that moves the charging handle, either by moving thefirearm off target or by moving the head away from the stock. If thefirearm jams, the shooter opens the bolt (and ideally ejects the spentshell casing) by pulling back the charging handle, then visuallyverifies that the chamber is clear before loading the next cartridge.Visually inspecting the chamber involves a small amount of movement,such as tilting the firearm, which can be done while keeping it ontarget. So, the larger movements used to actuate the charging handle andbring the firearm back into firing position significantly add to thetime and effort involved in making the firearm ready to fire after ajam. The subject matter disclosed herein reduces the movement used toactuate the charging handle, which allows the firearm to be made readyto fire more quickly.

Additionally, in certain failure modes of an AR-15 or similar firearm,extracting a stuck shell casing may involve applying large forces to thecharging handle. In difficult cases, the shooter may apply sufficientforce by kicking the charging handle or by using an additional tool. Forexample, a shooter may strike the charging handle several times with ahammer or similar tool to free the charging handle and extract a spentshell casing. The subject matter disclosed herein allows a shooter toapply the larger muscle groups of the chest and arm to exert greaterforce on the charging handle, thereby significantly increasing theshooter's ability to clear a stuck shell casing without using additionaltools or extreme motions such as kicking.

FIGS. 1 and 2 depict a perspective view of an unmodified firearm 100.The firearm 100 is depicted herein as an AR-15 rifle, but the subjectmatter of this disclosure may, in certain embodiments, operate withother firearms such as an M16 rifle, M4 carbine, other rifles derivedfrom the AR-15, or unrelated firearms. The firearm 100 includes an upperreceiver 102 with a T-shaped charging handle 104 coupled to the top ofthe upper receiver 102, toward the back.

As used herein, certain terms such as “front,” “back,” “top,” “bottom,”“up,” “down,” “upper,” “lower,” “horizontal,” “vertical,” “left,”“right,” and the like refer to the firearm 100 as conventionally fired.Therefore, the muzzle is at a front portion and the trigger is at amiddle lower portion of the firearm 100. These terms are used, whereapplicable, to provide some clarity of description when dealing withrelative relationships. But, these terms are not intended to implyabsolute relationships, positions, and/or orientations. For example,with respect to an object, an “upper” surface can become a “lower”surface simply by turning the object over. Nevertheless, it is still thesame object.

FIG. 2 depicts the charging handle 104 in a pulled-back position. Acharging handle latch 106 is coupled to the left side of the charginghandle 104. The charging handle latch 106 includes an axial surface anda lateral surface. As used herein, “axial” refers to a directionparallel to the barrel of the firearm 100, and “lateral” refers to adirection perpendicular to, or extending in a radial direction relativeto the barrel of the firearm 100. The axial surface of the charginghandle latch 106 includes a latching tooth, which engages the upperreceiver 102 to secure the charging handle 104 to the upper receiver 102in a forward, latched position as depicted in FIG. 1. The lateralsurface of the charging handle latch 106 is moved back when actuated,allowing the charging handle latch 106 to pivot about a roll pin (notshown) which connects the inner back portion of the charging handlelatch 106 to the charging handle 104. The pivoting motion disengages thelatching tooth from the upper receiver 102, which allows the charginghandle 104 to be pulled back as depicted in FIG. 2. Pulling the charginghandle 104 back also brings an internal bolt assembly into a backwardposition. The internal bolt assembly may include the bolt, a boltcarrier, a cartridge extractor, an ejector, or the like. After thecharging handle 104 is released, springs (not shown) return the internalbolt assembly to the forward position. Forward motion of the internalbolt assembly brings the charging handle 104 and the charging handlelatch 106 forward as well, where they are latched into the forwardposition.

In some embodiments, the firearm 100 includes attachment points 108configured to removably receive accessories, such as the subject matterdisclosed herein, sights, forward handgrips, bipods, bayonets, and thelike. In certain embodiments, the attachment points 108 form part of aPicatinny rail system. However, in some embodiments, the attachmentpoints 108 can form part of a Weaver rail, a NATO accessory rail, oranother system. In some embodiments, the upper receiver 102 includesattachment points 108. Certain embodiments also include attachmentpoints 108 as part of a handguard 109, at a forward position of thefirearm 100. In various embodiments, various additional locations arepossible for attachment points 108.

FIGS. 3, 4, and 5 depict a perspective view and two top views,respectively, of a firearm 100 modified with one embodiment of anapparatus 200 for actuating a charging handle 104. In the depictedembodiment, the firearm 100 includes an upper receiver 102, charginghandle 104, charging handle latch 106, and attachment points 108essentially as described above with reference to FIGS. 1 and 2. However,in the depicted embodiment, the apparatus 200 for actuating the charginghandle 104 includes a forward handle 202, a linkage rod 204, and one ormore linkage rod supports 206.

The forward handle 202, in one embodiment, is configured to bepositioned forward of the charging handle latch 106. In a furtherembodiment, the forward handle 202 is positioned at the left side of theforward handguard 109. Positioning the forward handle 202 forward of thecharging handle latch 106 enables a shooter to actuate the forwardhandle 202 with the left hand, without moving the left hand far from thesupport position associated with the forward handguard 109, and whilekeeping the right hand in the trigger position. In some embodiments, theforward handle 202 is configured to be easily gripped by a shooter. Forexample, in one implementation, the forward handle 202 can have aconcave surface for receiving a shooter's fingers. In someimplementations, the forward handle 202 can have an enlarged portion foreasier gripping, a knurled surface, a higher friction (e.g., rubber)coating, or the like.

The linkage rod 204, in one embodiment, is configured to be coupled tothe forward handle 202 and to engage the charging handle latch 106, suchthat engagement and actuation of the forward handle 202 actuates thecharging handle 104. In the depicted embodiment, the linkage rod 204extends forward in an axial direction from the charging handle latch 106to the forward handle 202. In the depicted embodiment, the forwardhandle 202 is actuated by moving the handle backward. Backward movementof the forward handle 202 moves the linkage rod 204 backward against thecharging handle latch 106, which causes the charging handle latch 106 tounlatch and the charging handle 104 to move backward, as shown in FIG.5. Thus, the forward handle 202 is coupled with the charging handle 104,and the charging handle 104 is actuated by actuation of the forwardhandle 202. After moving back and releasing the forward handle 202,springs not only move the internal bolt assembly, charging handle 104and charging handle latch 106 forward again into the starting position,but also move the linkage rod 204 and forward handle 202 forward intotheir starting positions, as shown in FIGS. 3 and 4.

In some embodiments, the charging handle latch 106 may include a forwardportion configured to engage the linkage rod 204. For example, incertain embodiments, a slot 205 in the rear portion of the linkage rod204 is configured to engage with a forward portion of the charginghandle latch 106. For easier coupling with the linkage rod 204, in someembodiments, the forward portion of the charging handle latch 106extends further forward than a standard charging handle latch 106. Inthe depicted embodiment, the slot 205 is horizontal, so that the forwardportion of the charging handle latch 106 fits into the slot 205 and avertical pin 207 extends through the linkage rod 204 and the charginghandle latch 106, connecting the two pieces. In another embodiment, thelinkage rod 204 is a simple pushrod, which pushes against any forwardsurface of the charging handle latch 106. In light of this disclosure,it is clear that other interfaces between the linkage rod 204 and thecharging handle latch 106 are possible.

In some embodiments, the charging handle latch 106 is stronger orthicker than a standard charging handle latch 106, to better accommodatethe force received from the linkage rod 204. In another embodiment, theroll pin connecting the charging handle latch 106 to the charging handle104 is similarly strengthened. Alternatively, in certain embodiments,the charging handle 104 is modified so that force is transmitted betweena back surface of the charging handle latch 106 and a lateral surface ofthe charging handle 104, instead of solely through the roll pin.

In one embodiment, the charging handle latch 106 extends further in alateral direction from the firearm 100 than a standard charging handlelatch 106, so that traditional operation of the charging handle 104 canstill be performed toward the back of the firearm 100 with either thetrigger hand or the support hand. For example, in one embodiment, asshown in FIG. 3, the charging handle latch 106 may include a lateralportion that extends beyond the linkage rod 204 in a lateral directionfrom the firearm 100. The lateral portion extending beyond the linkagerod 204 may allow a shooter to operate the charging handle latch 106directly without engaging the forward handle 202. In a furtherembodiment, the lateral portion of the charging handle latch 106 may beconfigured for easy gripping by a shooter. For example, the lateralportion of the charging handle latch 106 may include a ridged surface, aknurled surface, a higher friction (e.g., rubber) coating, or the like.

In some embodiments, the forward handle 202 is attached to the linkagerod 204 in a fixed position and orientation relative to the linkage rod204. The forward handle 202 may be welded, screwed, or otherwiseattached to the linkage rod 204, or both parts may be created togetheras a solid piece. As shown, another embodiment includes a hinge 209configured to couple the forward handle 202 to the linkage rod 204 sothat the forward handle 202 is movable (e.g., pivotable) between anaxial position and a lateral position. Moving the forward handle 202between an axial position and a lateral position allows a shooter todispose the forward handle 202 out of the shooter's way in the axialposition during firing, then move the forward handle 202 to the lateralposition to obtain a better grip on the forward handle 202 whenactuating the charging handle 104. FIG. 4 depicts the forward handle 202in the axial position, and FIGS. 3 and 5 depict the forward handle 202in the lateral position. A further embodiment includes a springconfigured to bias the forward handle 202 into the axial position.Biasing the forward handle 202 into the axial position allows theforward handle 202 to move into the axial position from the lateralposition without a shooter taking any further action to return theforward handle 202. The length of the linkage rod 204 and/or theposition of the forward handle 202 along the length of the linkage rod204 may be varied, depending on the desired position of the forwardhandle 202. In light of this disclosure, it is clear that otherinterfaces between the linkage rod 204 and the forward handle 202 arepossible.

In the depicted embodiment, the apparatus 200 includes one or morelinkage rod supports 206 configured to attach the linkage rod 204 to thefirearm 100. In one embodiment, the linkage rod 204 extends through thelinkage rod supports 206 and may slide relative to the linkage rodsupports 206, so that the linkage rod supports 206 movably retain thelinkage rod 204 relative to the firearm 100. Accordingly, the linkagerod supports 206 attach the apparatus 200 to the firearm 100, whileenabling the motion used to actuate the charging handle 104. In anotherembodiment, the linkage rod supports 206 attach the linkage rod 204 tothe firearm 100, and support the linkage rod 204 from underneath withoutfully encircling the linkage rod 204. In various embodiments, theinterface between the linkage rod 204 and a linkage rod support 206 maybe a bushing, a plain bearing, or another type of bearing. In oneembodiment the interface between the linkage rod 204 and the linkage rodsupport 206 may be lubricated. In some embodiments, the interfacebetween the linkage rod 204 and the linkage rod support 206 may besealed to keep grit or dust from interfering with the motion of thelinkage rod 204. In light of this disclosure, it is clear that manyinterfaces between the linkage rod 204 and linkage rod supports 206 arepossible.

In the depicted embodiment, the linkage rod supports 206 are configuredto attach to an accessory rail of the firearm 100 at one or moreattachment points 108. In various embodiments, a user may selectattachment points 108 (either independently or together) from aplurality of available attachment points 108 for attaching the one ormore linkage rod supports 206 to the firearm 100. In one embodiment, thelinkage rod supports 206 are configured to attach to the attachmentpoints 108 using a fastener such as a screw, a bolt, or the like. Inanother embodiment, the linkage rod supports 206 are configured toattach to the attachment points 108 with a quick release mechanism(e.g., without tools). In light of this disclosure, it is clear thatmany types of connections between the linkage rod supports 206 and theattachment points 108 are possible, depending on factors such as thetype of accessory rail being used.

In one embodiment, the apparatus 200 includes two linkage rod supports206. In another embodiment, the apparatus 200 may include one linkagerod support 206. In yet another embodiment, the apparatus 200 mayinclude three or more linkage rod supports 206. In some embodiments, theapparatus 200 includes narrow linkage rod supports 206 so that eachlinkage rod support 206 occupies one attachment point 108. In anotherembodiment, the apparatus 200 includes one or more wide linkage rodsupports 206 that span multiple attachment points 108. A wide linkagerod support 206 may be useful to provide stability if the apparatus 200includes just one linkage rod support 206.

In the depicted embodiment, the attachment points 108 of the firearm 100are part of a Picatinny accessory rail system, and the linkage rodsupports 206 include two independent linkage rod supports 206. Incertain embodiments, such as the depicted embodiment, the apparatus 200is configured so that each attachment point 108 for attaching thelinkage rod supports 206 is independently selectable by a user from aplurality of available attachment points 108. Because attachment points108 may already be in use for other accessories, such as telescopicsights (“scopes”), using independent linkage rod supports 206 allows ashooter to attach the apparatus 200 to a firearm 100 at attachmentpoints 108 that do not interfere with other attached accessories. In thedepicted embodiment, one linkage rod support 206 is attached to theaccessory rail at an attachment point 108 above the upper receiver 102,and a second linkage rod support 206 is attached to the accessory railat an attachment point 108 above the handguard 109. In anotherembodiment, two linkage rod supports 206 are attached to the upperreceiver 102. In yet other various embodiments, the linkage rod supports206 are attached only above the handguard 109 or to the side of thefirearm 100.

In the depicted embodiment, the linkage rod supports 206 are not fixedrelative to each other, and may be independently positioned at variousattachment points 108. Thus, in the depicted embodiment, the two linkagerod supports 206 are independent of each other, and a user may select adistance between the independent linkage rod supports 206 by selectingattachment points 108 for attaching the linkage rod supports 206 to theaccessory rail. Using various configurations of attachment points 108 toattach the linkage rod supports 206 to the firearm 100 may allow ashooter to utilize the apparatus 200 when certain attachment points 108are in use or otherwise unavailable. For example, a shooter may utilizethe apparatus 200 with a scope that occupies all or most of theattachment points 108 above the upper receiver 102, an upper receiver102 that has a carry handle instead of an accessory rail, a fronthandguard 109 that does not include an accessory rail, or the like.

In one embodiment, the linkage rod supports 206 may include additionalattachment points 108 for other accessories for the firearm. Forexample, in a further embodiment, the linkage rod supports 206 mayinclude an extension and/or riser for a Picatinny rail system, so that auser may mount other Picatinny-compatible hardware on top of the linkagerod supports 206.

The forward handle 202, linkage rod 204, and linkage rod supports 206may comprise any materials capable of handling the force used to actuatethe charging handle 104, such as steel, aluminum, nylon, compositematerials, or the like. In light of this disclosure, many materials areclear which are suitable for use in the forward handle 202, linkage rod204, or linkage rod supports 206.

FIGS. 6 and 7 depict a perspective view of a firearm 100 modified withanother embodiment of an apparatus 300 for actuating a charging handle104. In the depicted embodiment, the firearm 100 includes an upperreceiver 102, charging handle 104, charging handle latch 106, andattachment points 108 essentially as described above with reference toFIGS. 1 and 2. The apparatus 300 for actuating the charging handle 104,in the depicted embodiment, includes a forward handle 302, a linkage rod304, and a linkage rod support 306, as described above with reference toFIGS. 3, 4, and 5, where like numbers refer to like elements, but whichvary from the particular embodiment of an apparatus 200 depicted inthose Figures. In FIG. 6 the charging handle 104 and forward handle 302are in a forward position. In FIG. 7, however, the charging handle 104is moved back.

In the depicted embodiment, the apparatus 300 includes one linkage rodsupport 306. The single linkage rod support 306 attaches to an accessoryrail at two separate attachment points 108. However, the relativepositions of the attachment points 108 are not adjustable. Rather, thesingle linkage rod support 306 is configured to attach to the accessoryrail at two attachment points 108 a fixed distance apart. In a variationof the depicted embodiment, however, the linkage rod support 306 mayinclude parts that move relative to each other, so that the relativepositions of the attachment points 108 are independently adjustable. Thelinkage rod support 306, in the depicted embodiment, comprises a tubewith a slot in the side of the tube. In a further embodiment, theforward handle 302 is attached to the linkage rod 304 through the slot.In the forward position, the linkage rod 304 is mostly or fully enclosedby the linkage rod support 306. When actuated, the forward handle 302 ismoved backward along the slot, and the linkage rod 304 moves backward,extending further out of the tube.

The depicted embodiment allows the forward handle 302 to be positionedbehind the foremost portion of the linkage rod support 306, as may beseen by comparing the embodiment of FIGS. 3, 4, and 5 with theembodiment of FIGS. 6 and 7. The depicted embodiment allows a shooter toposition the apparatus 300 further back on the firearm 100, if desired.Alternatively, depending on the length of the linkage rod 304, thedepicted embodiment may allow the apparatus 300 to be attached to thefirearm 100 with both attachment points 108 on the front handguard 109,if attachment points 108 on the upper receiver 102 are not available.

In some embodiments, the apparatus 200, 300 herein is provided with theforward handle 202, 302, linkage rod 204, 304, and linkage rod supports206, 306, as described above in various embodiments, for use with anexisting charging handle latch 106. Installing the apparatus 200, 300 ona firearm 100 with an existing charging handle latch 106 may involvemodifying the charging handle latch 106 (e.g., by drilling a hole) so itwill interface correctly with the linkage rod 204, 304. In anotherembodiment, the apparatus 200, 300 may additionally include a charginghandle latch 106. Installing an apparatus 200, 300 that includes acharging handle latch 106 on a firearm 100 may involve replacing anexisting charging handle latch 106 by punching out and replacing a rollpin. In a further embodiment, the apparatus 200, 300 may further includea charging handle latch 106 already connected to a charging handle 104,allowing a user to install the apparatus 200, 300 by simply swapping outan existing charging handle 104, without using tools. In certainembodiments, the apparatus 200, 300 may include the firearm 100 ready touse along with the forward handle 202, 302, linkage rod 204, 304,linkage rod supports 206, 306, charging handle 104, and charging handlelatch 106 already installed.

Although some of the embodiments of the apparatus disclosed herein havebeen described as being operable with an AR-15 derived rifle, it isrecognized that the embodiments of the present disclosure may also beoperable with other types of firearms 100. For example, some embodimentsof the apparatus described herein may be operable with firearms 100 thatare not derived from the AR-15, but that have a rear charging handle104, a charging handle latch 106, and attachment points 108 foraccessories.

FIG. 8 depicts one embodiment of a method 800 for actuating a charginghandle 104. The method 800 begins, and a user engages 802 a forwardhandle 202, 302. In one embodiment, the forward handle 202, 302 ispositioned forward of the charging handle latch 106, and communicateswith the charging handle 104. For example, in some embodiments, theforward handle 202, 302 may communicate with the charging handle 104 viaa linkage rod 204, 304 coupled to the forward handle 202, 302 andengaging the charging handle latch 106. The user actuates 804 thecharging handle 104 by actuating the forward handle 202, 302, and themethod 800 ends. In one embodiment the user may actuate 804 the forwardhandle 202, 302 by moving the forward handle 202, 302 backward.

Additionally, instances in this specification where one element is“coupled” to another element can include direct and indirect coupling.Direct coupling can be defined as one element coupled to and in somecontact with another element. Indirect coupling can be defined ascoupling between two elements not in direct contact with each other, buthaving one or more additional elements between the coupled elements.Further, as used herein, securing one element to another element caninclude direct securing and indirect securing. Additionally, as usedherein, “adjacent” does not necessarily denote contact. For example, oneelement can be adjacent another element without being in contact withthat element.

The present subject matter may be embodied in other specific formswithout departing from its spirit or essential characteristics. Thedescribed embodiments are to be considered in all respects only asillustrative and not restrictive. The scope of the disclosure is,therefore, indicated by the appended claims rather than by the foregoingdescription. All changes which come within the meaning and range ofequivalency of the claims are to be embraced within their scope.

What is claimed is:
 1. An apparatus for actuating a charging handle of afirearm having a charging handle latch, the apparatus comprising: aforward handle configured to be positioned forward of the charginghandle latch; a linkage rod configured to be coupled to the forwardhandle and to engage the charging handle latch; and one or more linkagerod supports configured to attach the linkage rod to the firearm.
 2. Theapparatus of claim 1, wherein the linkage rod supports are configured toattach to an accessory rail of the firearm at one or more attachmentpoints of the accessory rail, the one or more attachment points beingselectable by a user from a plurality of available attachment points. 3.The apparatus of claim 2, wherein the one or more linkage rod supportscomprise two independent linkage rod supports, and wherein a distancebetween the two independent linkage rod supports is based on the one ormore attachment points selected by the user.
 4. The apparatus of claim2, wherein the one or more linkage rod supports comprise a singlelinkage rod support configured to attach to the accessory rail at twoattachment points a fixed distance apart.
 5. The apparatus of claim 1,further comprising: a hinge configured to couple the forward handle tothe linkage rod so that the forward handle is movable between an axialposition and a lateral position; and a spring configured to bias theforward handle into the axial position.
 6. The apparatus of claim 1,wherein a slot in a rear portion of the linkage rod is configured toengage a forward portion of the charging handle latch.
 7. The apparatusof claim 1, further comprising the charging handle latch.
 8. Theapparatus of claim 7, wherein the charging handle latch comprises aforward portion and a lateral portion, the forward portion configured toengage the linkage rod, and the lateral portion configured to extendbeyond the linkage rod in a lateral direction from the firearm.
 9. Theapparatus of claim 8, wherein the lateral portion of the charging handlelatch comprises a ridged surface.
 10. The apparatus of claim 7, furthercomprising the charging handle.
 11. The apparatus of claim 10, furthercomprising the firearm.
 12. A system for actuating a charging handle ofa firearm, the system comprising: a firearm; a charging handle coupledto a receiver of the firearm; a charging handle latch coupled to thecharging handle; a forward handle positioned forward of the charginghandle latch; a linkage rod coupled to the forward handle and engagingthe charging handle latch; and one or more linkage rod supportsattaching the linkage rod to the firearm.
 13. The system of claim 12,wherein the linkage rod supports are attached to an accessory rail ofthe firearm at one or more attachment points selectable by a user from aplurality of available attachment points.
 14. The system of claim 12,further comprising: a hinge coupling the forward handle to the linkagerod so that the forward handle is movable between an axial position anda lateral position; and a spring configured to bias the forward handleinto the axial position.
 15. The system of claim 12, wherein a slot in arear portion of the linkage rod engages a forward portion of thecharging handle latch.
 16. The system of claim 12, wherein the charginghandle latch comprises a forward portion engaging the linkage rod and alateral portion extending beyond the linkage rod in a lateral directionfrom the firearm.
 17. The system of claim 16, wherein the lateralportion of the charging handle latch comprises a ridged surface.
 18. Amethod for actuating a charging handle of a firearm having a charginghandle latch, the method comprising: engaging a forward handle, theforward handle positioned forward of the charging handle latch andcommunicating with the charging handle; and actuating the charginghandle by actuating the forward handle.
 19. The method of claim 18,wherein actuating the forward handle comprises moving the forward handlebackward.
 20. The method of claim 18, wherein the forward handlecommunicates with the charging handle via a linkage rod coupled to theforward handle and engaging the charging handle latch.